so they must return the opposite value for themselves. They don't want to actually set their values because the script could cancel. So the idea here is to let them know before the script call that they should return their "future" value (the opposite of their current value) b=42972 r=kmcclusk git-svn-id: svn://10.0.0.236/trunk@75424 18797224-902f-48f8-a5cc-f745e15eee43